Rispri HydroPolicy & Engineering Suite
The all-in-one deterministic calculation workbench for environmental engineers, wastewater process designers, CETP/STP operators, and water policy consultants. Built on Indian statutory norms (CGWA 2020 & CPCB 29 Sectors) with zero cloud sync latency and stamped PDF engineering datasheets.
Six Pillars of Environmental Engineering
From biological kinetics and membrane flux to statutory Central Ground Water Authority and National Green Tribunal fine calculations — all deterministic formulas implemented client-side without internet dependency.
MBBR & Biological Wastewater Sizing
Deterministic sizing of Moving Bed Biofilm Reactors (MBBR) and Activated Sludge (ASP). Computes Surface Area Loading Rates (SALR), media carrier specific surface areas (500–1200 m²/m³), dissolved oxygen transfer rates (OTR), and blower CFM requirements.
- Carrier media fill fraction (30% to 65%)
- Standard Oxygen Transfer Rate (SOTR) & blower kW
- F/M ratio and MLSS aeration tank kinetics
Lamella Clarifiers & Hydraulics
Design primary settling tanks, secondary clarifiers, and compact lamella plate settlers. Computes effective surface overflow rates (SOR), plate inclination angles (55°–60°), Reynolds number laminar flow compliance, and Hazen-Williams pipe friction head losses.
- Projected horizontal settling area calculation
- Velocity check (0.8 m/s – 2.5 m/s self-cleansing)
- Pump hydraulic shaft brake power (kW / HP)
RO Mass Balance & Media Filters
Pressure Sand Filter (PSF) and Activated Carbon Filter (ACF) sizing matched against standard industrial FRP vessels (1054 to 6386). Comprehensive Reverse Osmosis mass balance modeling permeate recovery, concentrate TDS, osmotic pressure, and specific energy consumption.
- Filtration velocity compliance (10–30 m/h)
- Membrane flux (GFD) and salt rejection % balance
- Chlorine disinfection & Lime neutralization dosing
CGWA 2020 Statutory NOC Engine
Instant classification across Safe, Semi-Critical, Critical, and Over-Exploited assessment units under the latest Central Ground Water Authority gazette guidelines. Automatically determines mandatory artificial recharge quotas and digital telemetry compliance.
- Safe (100%), Critical (150%), Over-Exploited (200%) quotas
- Rooftop & paved surface rainwater harvesting yields
- Groundwater restoration abstraction tariffs (INR/m³)
CPCB 29 Sector Outfall Standards
Statutory discharge standards database covering 29 industrial sectors specified by the Central Pollution Control Board (CPCB) and SPCBs. Real-time comparator flags compliance or exceedance for pH, TSS, COD, BOD, TDS, Ammoniacal Nitrogen, and heavy metals.
- Textile, Pharma, Dairy, Distilleries, Paper & Sugar limits
- Surface water, inland sewer, and land irrigation outfalls
- Real-time violation delta indicators
NGT Environmental Compensation & WQI
National Green Tribunal environmental penalty simulator implementing the exact formula (EC = PI × N × R × S × LF) to assess statutory liability. Includes multi-parameter Weighted Arithmetic Water Quality Index (WQI) field auditor.
- Red (80), Orange (50), Green (30) pollution index
- Scale (S) and Location Factor (LF) multiplier matrix
- Standard water quality classification: Grade A to Grade E
One-Click Printable Engineering Datasheet
Instantly compile your calculations into a formal, stamped PDF engineering datasheet. Complete with input boundary assumptions, unit conversions, design safety factors, and Rispri verification seal. Ready for submission to state pollution boards (SPCB), Central Ground Water Authority (CGWA), or industrial client reviews.
• Carrier Surface Area: 8,889 m² (Filling 50%)
• Blower Air Delivery: 462.8 Nm³/h @ 0.55 bar
• CGWA Mandatory Recharge: 100% (Safe Block)
Why Environmental Engineers Rely on Rispri
Unlike fragmented spreadsheet macros and cloud calculators that require constant logins and leak confidential client flow rates, Rispri Hydro Suite operates 100% offline with zero cloud telemetry.
| Capability / Feature | Rispri Hydro Suite | Standard Online Tools | Excel Spreadsheets |
|---|---|---|---|
| 100% Offline Functionality | ✔ Yes (Embedded Client Engine) | ✖ Requires Constant Internet | ✔ Yes |
| CGWA 2020 & CPCB 29 Sector Norms | ✔ Native Embedded Database | ✖ Outdated or Missing | ✖ Manual Lookup Required |
| Data Privacy & Confidentiality | ✔ Zero Telemetry (Never leaves device) | ✖ Data Stored on Remote Cloud | ✔ Local File |
| NGT Environmental Compensation (EC) | ✔ Exact NGT Formula Simulator | ✖ Not Available | ✖ Prone to Formula Breakage |
| Stamped Formal Engineering Datasheets | ✔ One-Click Stamped PDF Export | ✖ Raw Web Printout | ⚠ Cluttered Grid Layout |
| Mobile & Field Device Optimization | ✔ Native Android APK + Responsive PWA | ✖ Poor Mobile Scaling | ✖ Difficult to Use on Phone |
How to Install the Android APK (.apk)
Because Rispri Hydro Suite is an independent engineering utility without invasive ad networks or telemetry tracking, it is distributed directly as an APK package.
Download APK
Tap the "Download Android APK" button above or below to save rispri-hydro-suite.apk (4.67 MB) directly to your device.
Allow Unknown Sources
When prompted by Android, tap Settings and toggle "Allow from this source" for your browser or file manager.
Install & Work Offline
Tap "Install". Once finished, launch Hydro Suite from your app drawer. It will work completely offline anywhere in the field.
Equip Your Engineering Practice with Rispri Hydro Suite
Free, public, and open for environmental engineers, plant designers, and water policy researchers worldwide. Download the APK or launch instantly in your web browser.